The BD52E32G-MTR is a single-channel voltage detector from ROHM's automotive BD52Exxx-M series, monitoring a 3.2V supply rail and asserting a reset when the voltage drops below that threshold. The active-low, open-drain output lets you pull the reset signal to any voltage up to the absolute maximum of the output transistor, which is useful when the supervisor runs on a different rail than the monitored supply. The open-drain topology also allows wired-OR connections with other reset sources — common in multi-rail systems where any fault must trigger a global reset.
AEC-Q100 Grade — Audit-Ready Qualification
This part carries AEC-Q100 qualification as part of the BD52Exxx-M series, which means it has passed the stress tests (temperature cycling, ESD, latch-up, etc.) required for automotive PPAP submissions. Active lifecycle status means ROHM continues to manufacture it; no last-time-buy or successor has been announced.
Package and Footprint — SC-74A / SOT-753
The SC-74A (SOT-753) package is a 5-pin surface-mount footprint, also designated as 5-SSOP by ROHM. It fits standard reflow profiles; no exposed pad, so thermal dissipation relies on the copper trace area connected to the GND pin. The small footprint suits space-constrained ECU or sensor module designs.